opensoul.org - Round floats to the nearest X Commentstag:opensoul.org,2008:/2007/7/18/round-floats-to-the-nearest-x/commentsMephisto Drax2007-12-07T04:07:36ZDan Kubbtag:opensoul.org,2007-07-18:3259:44072007-12-07T04:07:36Z2007-12-07T04:07:36ZComment on 'Round floats to the nearest X' by Dan Kubb<p>What about:</p>
<pre>
require 'bigdecimal'
class Float
def round(to = 0)
rounded = BigDecimal(self.to_s).round(to)
to == 0 ? rounded.to_i : rounded
end
end
</pre>Matt Jonestag:opensoul.org,2007-07-18:3259:32602007-07-18T19:08:22Z2007-07-18T19:08:22ZComment on 'Round floats to the nearest X' by Matt Jones<p>This is a little more complicated, but it correctly rounds
results:</p>
<pre>
class Float
alias_method :old_round, :round unless method_defined?(:old_round)
def round(round_to = 1.0)
scaled = self / round_to
rounded = scaled.old_round * round_to
rounded % 1 == 0 ? rounded.to_i : rounded
end
end
</pre>